Passed them all... on 24, if you aim just to the right of the platform the here! box is on, and shoot w/ full power, eventually one of the dolls will bounce off the edge of the platform above, and fall back onto the target.

level 24 'blink trust' solution. Start counting blocks from the top left. Move your mouse right until you're in the 11th box on the grid paper. You want your mouse in the lower right hand corner of that box. (this is the first row of halved-boxes) You'll need to fine tone it a bit but your doll will hit a wall off the screen and ricochet back onto the goal.